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While running an Ubuntu kernel (not a mainline or third-party kernel)
please enter the following command in a terminal window:
apport-collect 1814604
and then change the status of the bug to 'Confirmed'.
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This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu)
Status: New => Incomplete
** Tags added: bionic
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https://bugs.launchpad.net/bugs/1814604
Title:
Alt-F1 aborts program when moving away from screen
Status in linux package in Ubuntu:
Incomplete
Bug description:
This problem was introduced in the "4.15.0-44" or "4.15.0-45" kernel
in late January 2019. The same problem happens in 32 bit and 64 bit
systems -- both installed before January 2019 and AFTER the problem
was introduced (that is, complete new installations AFTER). I have an
Acer Aspire R15 laptop.
To reproduce the problem -- after the system boots:
Ctrl-Alt-F1 (unity) or Ctrl-Alt-F3 (gdm3). For arguments sake, I'll only
show unity.
type in:
cd /tmp
ed
a
And that puts you into the "ed" editor in "append" (add) mode.
Ctrl-Alt-F2 (or Alt-F2) and duplicate the typing in of F1 above
Ctrl-Alt-F3 (or Alt-F3) and duplicate the typing in of F1 above
Now, Ctrl-Alt-F1 (or Alt-F1) back to screen #1. It is at the system
prompt rather than and "ed" prompt, and the error "stdin: Resource
temporarily unavailable" is displayed. If you move to "Alt-F2" or
"Alt-F3", you don't see the error message there, and those screens
seem unaffected -- that is, it seems to affect only "Alt-F1". For
some reason screen #1 aborts the program that is running when you move
away from "Alt-F1". You can confirm that the program aborts when
moving away from "Alt-F1" rather than moving back to "Alt-F1" by doing
an "ssh" to that computer from another computer and doing a "ps -e |
egrep tty1" before and after moving away from "Alt-F1".
You can exit those "ed" sessions back to the system prompt by typing in:
.
q
lsb_release -rd
Description: Ubuntu 18.04.1 LTS
Release: 18.04
version.log --> Ubuntu 4.15.0-45.48-generic 4.15.18
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